Vitrimerization: Converting Thermoset Polymers into Vitrimers
Liang Yue, Haochen Guo, Alison Kennedy, Ammar Patel, Xuehui Gong, Tianxiong Ju, Thomas Gray, Ica Manas‐Zloczower
Abstract
Thermoset polymers with permanently cross-linked networks have outstanding mechanical properties and solvent resistance, but they cannot be reprocessed or recycled. On the other hand, vitrimers with covalent adaptable networks can be recycled. Here we provide a simple and practical method coined as "vitrimerization" to convert the permanent cross-linked thermosets into vitrimer polymers without depolymerization. The vitrimerized thermosets exhibit comparable mechanical properties and solvent resistance with the original ones. This method allows recycling and reusing the unrecyclable thermoset polymers with minimum loss in mechanical properties and enables closed-loop recycling of thermosets with the least environmental impact.